HIGH STRENGTH AND HIGH DUCTILITY MAGNESIUM ALLOY

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PURPOSE : High strength and high ductility magnesium alloy is provided to reduce thermal crack in a processing process, such as an extruding process, since secondary thermal stability is enhanced.CONSTITUTION : High strength and high ductility magnesium alloy consists of Zn of 4.5~7.0 weight%%, Zr of 0.4~1.0 weight%%, Cu of 0.2~1.5 weight%%, Ce of 0.1~2.0 weight%%, magnesium and inevitable impurities. The MM is cerium rich misch metal. The maximum extrusion rate of the MG is 8m/min or faster. An alloy element, such as, Cu, Ce or MM is added to Mg-Zn-Zr alloy, fine eduction particles are formed in a magnesium base and grains are micronized. Cu, Ce or MM is added to the Mg-Zn-Zr alloy and thus strength and ductility can be enhanced.COPYRIGHT KIPO 2011